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السجلات المعروضة 151 -- 160 من 197
Lower Eocene Black Shale Beds Of Rus Formation In North Of Oman-Possible Oil Shales
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Qatar University
, 1994 , Article)
A suite of samples from some black shale beds of lower Eocene Rus Formation from north of Oman have been investigated through detailed geochemical analyses. The obtained results indicate that these shale beds contain a ...
Iodometric microdetermination of phosphorus in organic compounds by use of An amplification reaction
(
Qatar University
, 1994 , Article)
A high chemical amplification method is described for the iodometric microdetermination of phosphorus in organic compounds. This method depends on combustion by the oxygen flask, absorption of the combustion products in ...
Evaluation Of Saudi Arabia's Development Planning: Direction And Implementation Problems
(
Qatar University
, 1994 , Article)
Saudi Arabia's development has advanced along three
dimensions: economic, social and institutional. In the economic field it meant
advances in basic infrastructure and in economic diversification. In the social
field, ...
Factor analysis of integrated radiometric data as an aid In geological mapping of gebel eneigi area South Eastern Desert, Egypt
(
Qatar University
, 1994 , Article)
Factor analysis technique was applied to airborne gamma-ray spectrometric data of Gebel Eneigi Area, South Eastern Desert of Egypt where the concentration maps of U, Th, K and their ratios besides the Tc (total count map) ...
Facile synthesis of several new pyridine and fused pyridine derivatives with Anticipated biological activity
(
Qatar University
, 1994 , Article)
The reactions of benzothiazol-2-N-acetylacetohydrazide 1 with a, (}-unsaturated aldehyde, ketone, ester or diketoester led to the formation of the titled ring systems. The same target was also achieved through the reactions ...
The structure of tetraketones in the solid state: the crystal structure of 1,6- Diphenylhexane-1,3,4,6-tetrone
(
Qatar University
, 1994 , Article)
The crystal structure of l,6-diphenylhexane-l,3,4,6-tetrone was determined, CjgHi4O4, M 294.31 monoclinic, space group P2j/n (# 14), a 5.1192 (6) A, b 9.085 (9) A, c 15.366 (4) A, b 97.91 (4)°, p (calc) 1.362 g/cm3, Z 2, ...
Biochemical composition of the copepod euterpina acutifrons from the Coastal waters of alexandria
(
Qatar University
, 1994 , Article)
Protein, carbohydrate and lipid contents were determined in the most numerous and wide spread copepod Euterpina acutifrons collected from the coastal waters of Alexandria. Protein is the major biochemical component of the ...
Allelopathic Effect Of Glossonema Edule (Asclepiadaceae) On Associated Flowering Plants And Rhizosphere Fungi In Qatar
(
Qatar University
, 1994 , Article)
Laboratory experiments were conducted to determine whether there were allelopathic effects of Glossonema edule (Asclepiadaceae) on six associated flowering plant species and three soil fungi. The tested species were the ...
On sexual dimorphism in the shrimp Palaemon pacificus (decapoda: palaemonidae) Collected from the red sea
(
Qatar University
, 1994 , Article)
Palaemon pacificus is common in the Red Sea coast and the sexes are separate. Potential sexual dimorphism in 38 morphological parameters was investigated in a population of Palaemon pacificus collected from the Red Sea ...
Phylogenetic studies on the architectural features of Amphibian (bufo regularis) and mammalian (oryctolagus cuniculus) kidneys
(
Qatar University
, 1994 , Article)
The results of the present study revealed that mesonephric and metanephric kidneys of both the anamniotes (Bufo regularis) and the amniotes (Oryctolagus cuniculus) vertebrates respectively differ morphologically, anatomically ...